<template>
  <div class='home-category'>
    <ul class="menu">
      <li  v-for="item in list" :key="item.id" @mouseenter="currCategory=item">
        <RouterLink :to="`/category/${item.id}`">{{item.name}}</RouterLink>
        <RouterLink :to="`/category/sub/${item2.id}`" v-for="item2 in item.children" :key="item2.id">

        {{item2.name }}
        </RouterLink>
         <!-- 骨架屏封装的 -->
    <template v-if="!item.children">
          <XtxSkeleton bg="rgba(255,255,255,0.3)" width="60px" height="18px" style="margin-right:10px" />
          <XtxSkeleton bg="rgba(255,255,255,0.3)" width="50px" height="18px" />
        </template>

      </li>
    </ul>
  <!-- 弹层 -->
    <div class="layer">
      <h4>分类推荐 <small>根据您的购买或浏览记录推荐</small></h4>
      <!-- //商品分类 -->
      <ul v-if="currCategory">
        <li v-for="item3 in currCategory.goods " :key="item3.id">
          <RouterLink to="/">
            <img v-src="item3.picture" alt="">
            <div class="info">
              <p class="name ellipsis-2">{{item3.name}}</p>
              <p class="desc ellipsis">{{item3.desc}}</p>
              <p class="price"><i>¥</i>{{item3.price}}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
      <!-- 品牌列表 -->
      <ul v-if="currCategory&&currCategory.brands">
  <li class="brand" v-for="item in currCategory.brands" :key="item.id">
    <RouterLink to="/">
      <img v-src="item.picture" alt="">
      <div class="info">
        <p class="place"><i class="iconfont icon-dingwei"></i>{{item.place}}</p>
        <p class="name ellipsis">{{item.name}}</p>
        <p class="desc ellipsis-2">{{item.desc}}</p>
      </div>
    </RouterLink>

  </li>
</ul>
    </div>
  </div>

</template>

<script>
import { computed, reactive, ref } from 'vue'
import { useStore } from 'vuex'
import { findBrand } from '@/api/home'
// console.log(findBrand)
export default {

  name: 'HomeCategory',
  setup () {
    // 没啥用，定义一个变量的复杂类型
    // 后台回来的分类数据不包含品牌，所以自己设计一个品牌数据
    const brand = reactive({
      id: 'brand',
      name: '品牌',
      children: [{ id: 'brand-chilren', name: '品牌推荐' }],
      brands: []
    })
    const store = useStore()

    const list = computed(() => {
      const arr = store.state.category.list.map(item => ({
        // 把item.id给到list里面的id
        id: item.id,
        // 把item.name 给到list里面的name
        name: item.name,
        // 防止初始化没有children的时候调用slice函数报错
        children: item.children && item.children.slice(0, 2),
        // 这个是把item里面的goods给到goods实际给到List goods是在vuex里面看的 f12vue里面看
        goods: item.goods
      }))
      // 添加品牌数据
      arr.push(brand)
      // 返回完整数据
      return arr
    })
    // 然后加到list去
    // console.log(list)
    const currCategory = ref(null)
    // 获取品牌数据
    findBrand().then(({ result }) => {
      // 品牌数据给到上面的brand里面的brands
      brand.brands = result
    })
    // console.log(brand)
    // console.log(list)

    return { list, currCategory }
  }
}
</script>

<style scoped lang='less'>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  &:hover {
    .layer {
      display: block;
    }
  }
  .layer {
    width: 990px;
    height: 500px;
    background: rgba(255, 255, 255, 0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;
    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;
      small {
        font-size: 16px;
        color: #666;
      }
    }
    ul {
      display: flex;
      flex-wrap: wrap;
      //品牌li样式
          li.brand {
        height: 180px;
        a {
          align-items: flex-start;
          img {
            width: 120px;
            height: 160px;
          }
          .info {
            p {
              margin-top: 8px;
            }
            .place {
              color: #999;
            }
          }
        }
      }
      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;
        &:nth-child(3n) {
          margin-right: 0;
        }
        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;
          &:hover {
            background: #e3f9f4;
          }
          img {
            width: 95px;
            height: 95px;
          }
          .info {
            padding-left: 10px;
            line-height: 24px;
            width: 190px;
            .name {
              font-size: 16px;
              color: #666;
            }
            .desc {
              color: #999;
            }
            .price {
              font-size: 22px;
              color: @priceColor;
              i {
                font-size: 16px;
              }
            }
          }
        }
      }
    }
  }
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
}

</style>
